fix(ci): specify APP_URL

.dockerignore

@@ -2,3 +2,5 @@ README.md
 LICENCE
 .git
 docker-compose.yml
+Dockerfile
+.github

docker-compose.test.yml

@@ -6,7 +6,7 @@ services:
     depends_on:
     - bookstack
   mysql:
-    image: mysql:5.7.33
+    image: mysql:8.0
     environment:
     - MYSQL_ROOT_PASSWORD=secret
     - MYSQL_DATABASE=bookstack
@@ -20,6 +20,7 @@ services:
     depends_on:
     - mysql
     environment:
+    - APP_URL=http://localhost:${DEV_PORT:-8080}
     - DB_HOST=mysql:3306
     - DB_DATABASE=bookstack
     - DB_USERNAME=bookstack

docker-compose.yml

@@ -1,7 +1,7 @@
 version: '2'
 services:
   mysql:
-    image: mysql:5.7.33
+    image: mysql:8.0
     environment:
     - MYSQL_ROOT_PASSWORD=secret
     - MYSQL_DATABASE=bookstack